Document Type

Article

Publication Date

Spring 3-10-2009

Publication Title

The Astrophysical Journal

Volume

693

Issue

2

Publisher

The American Astronomical Society

Abstract

We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations by GROND, which led to the discovery of its optical/NIR afterglow and the recognition of its high-z nature via the detection of a spectral break between the i and z bands. Spectroscopy obtained at the ESO-VLT revealed a continuum extending down to λ = 9400 Å, and zero ﬂux for 7500 Å